src/XGUI/XGUI_Viewer.cpp

   1 #include "XGUI_Viewer.h"
   2 #include "XGUI_MainWindow.h"
   3 #include "XGUI_ViewWindow.h"
   4 #include "XGUI_ViewPort.h"
   5
   6 #include <QMdiArea>
   7 #include <QMdiSubWindow>
   8 #include <QApplication>
   9
  10 #include <V3d_View.hxx>
  11
  12 #include <Aspect_DisplayConnection.hxx>
  13 #include <Graphic3d.hxx>
  14 #include <Graphic3d_GraphicDriver.hxx>
  15 #include <Geom_Axis2Placement.hxx>
  16 #include <AIS_Drawer.hxx>
  17 #include <Prs3d_DatumAspect.hxx>
  18 #include <Prs3d_LineAspect.hxx>
  19 #include <V3d_View.hxx>
  20 #include <Visual3d_View.hxx>
  21 #include <AIS_ListOfInteractive.hxx>
  22 #include <AIS_ListIteratorOfListOfInteractive.hxx>
  23 #include <AIS_Shape.hxx>
  24
  25 #include <QMouseEvent>
  26
  27 #ifdef WIN32
  28 #include <WNT_Window.hxx>
  29 #else
  30 #include <Xw_Window.hxx>
  31 #endif
  32
  33 XGUI_Viewer::InteractionStyle2StatesMap XGUI_Viewer::myStateMap;
  34 XGUI_Viewer::InteractionStyle2ButtonsMap XGUI_Viewer::myButtonMap;
  35 static bool isInitialized = false;
  36
  37 /*!
  38  Creates viewer 3d [ static ]
  39  */
  40 Handle(V3d_Viewer) CreateViewer(const Standard_ExtString name, const Standard_CString displayName,
  41                                 const Standard_CString domain, const Standard_Real viewSize,
  42                                 const V3d_TypeOfOrientation viewProjection,
  43                                 const Standard_Boolean computedMode,
  44                                 const Standard_Boolean defaultComputedMode)
  45 {
  46   static Handle(Graphic3d_GraphicDriver) aGraphicDriver;
  47   if (aGraphicDriver.IsNull()) {
  48     Handle(Aspect_DisplayConnection) aDisplayConnection;
  49 #ifndef WIN32
  50     aDisplayConnection = new Aspect_DisplayConnection( displayName );
  51 #else
  52     aDisplayConnection = new Aspect_DisplayConnection();
  53 #endif
  54     aGraphicDriver = Graphic3d::InitGraphicDriver(aDisplayConnection);
  55   }
  56
  57   return new V3d_Viewer(aGraphicDriver, name, domain, viewSize, viewProjection, Quantity_NOC_GRAY30,
  58                         V3d_ZBUFFER, V3d_GOURAUD, V3d_WAIT, computedMode, defaultComputedMode,
  59                         V3d_TEX_NONE);
  60 }
  61
  62 // VSR: Uncomment below line to allow texture background support in OCC viewer
  63 #define OCC_ENABLE_TEXTURED_BACKGROUND
  64
  65 /*!
  66  Get data for supported background modes: gradient types, identifiers and supported image formats
  67  */
  68 QString XGUI_Viewer::backgroundData(QStringList& gradList, QIntList& idList, QIntList& txtList)
  69 {
  70   gradList << tr("Horizontal gradient") << tr("Vertical gradient")
  71       << tr("First diagonal gradient") << tr("Second diagonal gradient")
  72       << tr("First corner gradient") << tr("Second corner gradient")
  73       << tr("Third corner gradient") << tr("Fourth corner gradient");
  74   idList << XGUI::HorizontalGradient << XGUI::VerticalGradient << XGUI::Diagonal1Gradient
  75       << XGUI::Diagonal2Gradient << XGUI::Corner1Gradient << XGUI::Corner2Gradient
  76       << XGUI::Corner3Gradient << XGUI::Corner4Gradient;
  77 #ifdef OCC_ENABLE_TEXTURED_BACKGROUND
  78   txtList << XGUI::CenterTexture << XGUI::TileTexture << XGUI::StretchTexture;
  79 #endif
  80   return tr("Image files (*.bmp *.gif *.pix *.xwd *.rgb *.rs)");
  81 }
  82
  83 XGUI_Viewer::XGUI_Viewer(XGUI_MainWindow* theParent, bool DisplayTrihedron)
  84     : QObject(theParent),
  85     myMainWindow(theParent),
  86     myPreselectionEnabled(true),
  87     mySelectionEnabled(true),
  88     myMultiSelectionEnabled(true),
  89     myIsRelative(true),
  90     myInteractionStyle(XGUI::STANDARD),
  91     myTrihedronSize(100),
  92     myActiveView(0)
  93 {
  94   if (!isInitialized) {
  95     isInitialized = true;
  96
  97     // standard interaction style
  98     XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::ZOOM] = Qt::ControlModifier;
  99     XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::ZOOM] = Qt::LeftButton;
 100
 101     XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::PAN] = Qt::ControlModifier;
 102     XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::PAN] = Qt::MidButton;
 103
 104     XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::ROTATE] = Qt::ControlModifier;
 105     XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::ROTATE] = Qt::RightButton;
 106
 107     XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::FIT_AREA] = Qt::ControlModifier;
 108     XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::FIT_AREA] = Qt::RightButton;
 109
 110     // "key free" interaction style
 111     XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::ZOOM] = Qt::NoModifier;
 112     XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::ZOOM] = Qt::RightButton;
 113
 114     XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::PAN] = Qt::NoModifier;
 115     XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::PAN] = Qt::MidButton;
 116
 117     XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::ROTATE] = Qt::NoModifier;
 118     XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::ROTATE] = Qt::LeftButton;
 119
 120     XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::FIT_AREA] = Qt::NoModifier; // unused
 121     XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::FIT_AREA] = Qt::NoButton; // unused
 122   }
 123
 124   // init CasCade viewers
 125   myV3dViewer = CreateViewer(TCollection_ExtendedString("Viewer3d").ToExtString(), "", "", 1000.0,
 126                              V3d_XposYnegZpos, Standard_True, Standard_True);
 127   myV3dViewer->SetDefaultLights();
 128
 129   // init selector
 130   myAISContext = new AIS_InteractiveContext(myV3dViewer);
 131   myAISContext->SelectionColor(Quantity_NOC_WHITE);
 132
 133   // display isoline on planar faces (box for ex.)
 134   myAISContext->IsoOnPlane(true);
 135
 136   if (DisplayTrihedron) {
 137     Handle(Geom_Axis2Placement) anAxis = new Geom_Axis2Placement(gp::XOY());
 138     myTrihedron = new AIS_Trihedron(anAxis);
 139     myTrihedron->SetInfiniteState( Standard_True);
 140
 141     Quantity_Color Col(193 / 255., 205 / 255., 193 / 255., Quantity_TOC_RGB);
 142     myTrihedron->SetArrowColor(Col.Name());
 143     myTrihedron->SetSize(myTrihedronSize);
 144     Handle(AIS_Drawer) drawer = myTrihedron->Attributes();
 145     if (drawer->HasDatumAspect()) {
 146       Handle(Prs3d_DatumAspect) daspect = drawer->DatumAspect();
 147       daspect->FirstAxisAspect()->SetColor(Quantity_Color(1.0, 0.0, 0.0, Quantity_TOC_RGB));
 148       daspect->SecondAxisAspect()->SetColor(Quantity_Color(0.0, 1.0, 0.0, Quantity_TOC_RGB));
 149       daspect->ThirdAxisAspect()->SetColor(Quantity_Color(0.0, 0.0, 1.0, Quantity_TOC_RGB));
 150     }
 151   }
 152   // set zooming style to standard
 153   //myZoomingStyle = 0;
 154
 155   QMdiArea* aMDI = myMainWindow->mdiArea();
 156   connect(aMDI, SIGNAL(subWindowActivated(QMdiSubWindow*)), this, SLOT(onWindowActivated(QMdiSubWindow*)));
 157
 158 }
 159
 160 XGUI_Viewer::~XGUI_Viewer(void)
 161 {
 162   myAISContext.Nullify();
 163   myV3dViewer.Nullify();
 164 }
 165
 166 QMdiSubWindow* XGUI_Viewer::createView(V3d_TypeOfView theType)
 167 {
 168   // create view frame
 169   XGUI_ViewWindow* view = new XGUI_ViewWindow(this, theType);
 170   // get main view window (created by view frame)
 171   //OCCViewer_ViewWindow* vw = view->getView(OCCViewer_ViewFrame::MAIN_VIEW);
 172   // initialize main view window
 173   //initView( vw );
 174   // set default background for view window
 175   //vw->setBackground( background(0) ); // 0 means MAIN_VIEW (other views are not yet created here)
 176   //// connect signal from viewport
 177     //connect(view->viewPort(), SIGNAL(vpClosed()), this, SLOT(onViewClosed()));
 178     //connect(view->viewPort(), SIGNAL(vpMapped()), this, SLOT(onViewMapped()));
 179     if (myViews.size() == 0)
 180         setTrihedronShown(true);
 181
 182     view->setBackground(XGUI_ViewBackground(XGUI::VerticalGradient, Qt::white, QColor(Qt::blue).lighter()));
 183   //view->setBackground(XGUI_ViewBackground(Qt::black));
 184
 185   QMdiArea* aMDI = myMainWindow->mdiArea();
 186   QMdiSubWindow* aWnd = aMDI->addSubWindow(view, Qt::FramelessWindowHint);
 187     addView(aWnd);
 188   aWnd->setGeometry(0, 0, aMDI->width() / 2, aMDI->height() / 2);
 189   aWnd->show();
 190   return aWnd;
 191 }
 192
 193 void XGUI_Viewer::setLocalSelection(const AIS_ListOfInteractive& theAISObjects, const int theMode,
 194                                     const bool isUpdateViewer)
 195 {
 196   Handle(AIS_InteractiveContext) ic = AISContext();
 197
 198   // Open local context if there is no one
 199   bool allObjects = false; // calculate by AIS shape
 200   if (!ic->HasOpenedContext()) {
 201     ic->ClearCurrents(false);
 202     ic->OpenLocalContext(allObjects, true, true);
 203   }
 204
 205   // Activate selection of objects from prs
 206   AIS_ListIteratorOfListOfInteractive aIter(theAISObjects);
 207   for (; aIter.More(); aIter.Next()) {
 208     Handle(AIS_InteractiveObject) anAIS = aIter.Value();
 209     if (!anAIS.IsNull()) {
 210       if (anAIS->IsKind(STANDARD_TYPE(AIS_Shape))) {
 211         ic->Load(anAIS, -1, false);
 212         ic->Activate(anAIS, AIS_Shape::SelectionMode((TopAbs_ShapeEnum)theMode));
 213       }
 214       else if (anAIS->DynamicType() != STANDARD_TYPE(AIS_Trihedron)) {
 215         ic->Load(anAIS, -1, false);
 216         ic->Activate(anAIS, theMode);
 217       }
 218     }
 219   }
 220   if (isUpdateViewer)
 221     ic->UpdateCurrentViewer();
 222 }
 223
 224 void XGUI_Viewer::setGlobalSelection(const bool isUpdateViewer)
 225 {
 226   Handle(AIS_InteractiveContext) ic = AISContext();
 227   if (!ic.IsNull()) {
 228     ic->CloseAllContexts(false);
 229     if (isUpdateViewer)
 230       ic->UpdateCurrentViewer();
 231   }
 232 }
 233
 234 /*! Sets hot button
 235  *\param theOper - hot operation
 236  *\param theState - adding state to state map operations.
 237  *\param theButton - adding state to button map operations.
 238  */
 239 void XGUI_Viewer::setHotButton(XGUI::InteractionStyle theInteractionStyle,
 240                                XGUI::HotOperation theOper, Qt::KeyboardModifiers theState,
 241                                Qt::MouseButtons theButton)
 242 {
 243   myStateMap[theInteractionStyle][theOper] = theState;
 244   myButtonMap[theInteractionStyle][theOper] = theButton;
 245 }
 246
 247 /*! Gets hot button for operation \a theOper.
 248  *\param theOper - input hot operation
 249  *\param theState - output state from state map operations.
 250  *\param theButton - output state from button map operations.
 251  */
 252 void XGUI_Viewer::getHotButton(XGUI::InteractionStyle theInteractionStyle,
 253                                XGUI::HotOperation theOper, Qt::KeyboardModifiers& theState,
 254                                Qt::MouseButtons& theButton)
 255 {
 256   theState = myStateMap[theInteractionStyle][theOper];
 257   theButton = myButtonMap[theInteractionStyle][theOper];
 258 }
 259
 260 /*!
 261  Changes visibility of trihedron to opposite
 262  */
 263 void XGUI_Viewer::toggleTrihedron()
 264 {
 265   setTrihedronShown(!isTrihedronVisible());
 266 }
 267
 268 /*!
 269  \return true if trihedron is visible
 270  */
 271 bool XGUI_Viewer::isTrihedronVisible() const
 272 {
 273   return !myTrihedron.IsNull() && !myAISContext.IsNull() && myAISContext->IsDisplayed(myTrihedron);
 274 }
 275
 276 /*!
 277  Sets visibility state of trihedron
 278  \param on - new state
 279  */
 280
 281 void XGUI_Viewer::setTrihedronShown(bool on)
 282 {
 283   if (myTrihedron.IsNull())
 284     return;
 285
 286   if (on) {
 287     myAISContext->Display(myTrihedron);
 288     myAISContext->Deactivate(myTrihedron);
 289   } else {
 290     myAISContext->Erase(myTrihedron);
 291   }
 292 }
 293
 294 /*!
 295  \return trihedron size
 296  */
 297 double XGUI_Viewer::trihedronSize() const
 298 {
 299   double sz = 0;
 300   if (!myTrihedron.IsNull())
 301     sz = myTrihedron->Size();
 302   return sz;
 303 }
 304
 305 /*!
 306  Changes trihedron size
 307  \param sz - new size
 308  */
 309 void XGUI_Viewer::setTrihedronSize(const double sz, bool isRelative)
 310 {
 311   if (myTrihedronSize != sz || isRelative != myIsRelative) {
 312     myTrihedronSize = sz;
 313     myIsRelative = isRelative;
 314     updateTrihedron();
 315   }
 316 }
 317
 318 /*!
 319  * Update the size of the trihedron
 320  */
 321 void XGUI_Viewer::updateTrihedron()
 322 {
 323   if (myTrihedron.IsNull())
 324     return;
 325
 326   if (myIsRelative) {
 327     double newSz, oldSz;
 328
 329     if (computeTrihedronSize(newSz, oldSz))
 330       myTrihedron->SetSize(newSz);
 331
 332   } else if (myTrihedron->Size() != myTrihedronSize) {
 333     myTrihedron->SetSize(myTrihedronSize);
 334   }
 335 }
 336
 337 /*!
 338  Get new and current trihedron size corresponding to the current model size
 339  */
 340 bool XGUI_Viewer::computeTrihedronSize(double& theNewSize, double& theSize)
 341 {
 342   theNewSize = 100;
 343   theSize = 100;
 344
 345   //SRN: BUG IPAL8996, a usage of method ActiveView without an initialization
 346   Handle(V3d_Viewer) viewer = v3dViewer();
 347   viewer->InitActiveViews();
 348   if (!viewer->MoreActiveViews())
 349     return false;
 350
 351   Handle(V3d_View) view3d = viewer->ActiveView();
 352   //SRN: END of fix
 353
 354   if (view3d.IsNull())
 355     return false;
 356
 357   double Xmin = 0, Ymin = 0, Zmin = 0, Xmax = 0, Ymax = 0, Zmax = 0;
 358   double aMaxSide;
 359
 360   view3d->View()->MinMaxValues(Xmin, Ymin, Zmin, Xmax, Ymax, Zmax);
 361
 362   if (Xmin == RealFirst() || Ymin == RealFirst() || Zmin == RealFirst() || Xmax == RealLast()
 363       || Ymax == RealLast() || Zmax == RealLast())
 364     return false;
 365
 366   aMaxSide = Xmax - Xmin;
 367   if (aMaxSide < Ymax - Ymin)
 368     aMaxSide = Ymax - Ymin;
 369   if (aMaxSide < Zmax - Zmin)
 370     aMaxSide = Zmax - Zmin;
 371
 372   // IPAL21687
 373   // The boundary box of the view may be initialized but nullified
 374   // (case of infinite objects)
 375   if (aMaxSide < Precision::Confusion())
 376     return false;
 377
 378   static float EPS = (float)5.0E-3;
 379   theSize = trihedron()->Size();
 380   //theNewSize = aMaxSide*aSizeInPercents / 100.0;
 381
 382   return fabs(theNewSize - theSize) > theSize * EPS || fabs(theNewSize - theSize) > theNewSize * EPS;
 383 }
 384
 385 void XGUI_Viewer::onViewClosed(QMdiSubWindow* theView)
 386 {
 387     if ( !theView )
 388         return;
 389
 390     emit deleteView( static_cast<XGUI_ViewWindow*>(theView->widget()) );
 391     removeView( theView );
 392
 393     // if this is last view
 394     if (myViews.size() == 0) {
 395         Standard_Integer aViewsNb = 0;
 396         for ( myV3dViewer->InitActiveViews(); myV3dViewer->MoreActiveViews(); myV3dViewer->NextActiveViews())
 397             ++aViewsNb;
 398         if ( aViewsNb < 2 ) {
 399             //clean up presentations before last view is closed
 400             myAISContext->RemoveAll(Standard_False);
 401         }
 402     }
 403 }
 404
 405 /*!Remove view window \a theView from view manager.
 406  *And close the last view, if it has \a theView.
 407 */
 408 void XGUI_Viewer::removeView( QMdiSubWindow* theView )
 409 {
 410     XGUI_ViewWindow* aWindow = static_cast<XGUI_ViewWindow*>(theView->widget());
 411
 412     aWindow->disconnect( this );
 413     myViews.removeAt( myViews.indexOf( theView ) );
 414     if ( myActiveView == theView )
 415         myActiveView = 0;
 416     if ( myViews.size() == 0 )
 417         emit lastViewClosed();
 418 }
 419
 420
 421 /*void XGUI_Viewer::onViewMapped()
 422 {
 423   setTrihedronShown(true);
 424 }*/
 425
 426
 427 void XGUI_Viewer::addView(QMdiSubWindow* theView)
 428 {
 429     XGUI_ViewWindow* aWindow = dynamic_cast<XGUI_ViewWindow*>(theView->widget());
 430
 431     connect(aWindow, SIGNAL(closed(QMdiSubWindow*)),
 432             this,    SLOT(onViewClosed(QMdiSubWindow*)));
 433
 434     connect(aWindow, SIGNAL(tryClosing(XGUI_ViewWindow*)),
 435             this,    SIGNAL(tryCloseView(XGUI_ViewWindow*)));
 436
 437     connect(aWindow, SIGNAL(mousePressed(XGUI_ViewWindow*, QMouseEvent*)),
 438             this,    SLOT(onMousePressed(XGUI_ViewWindow*, QMouseEvent*)));
 439
 440     connect(aWindow, SIGNAL(mouseReleased(XGUI_ViewWindow*, QMouseEvent*)),
 441             this,    SIGNAL(mouseRelease(XGUI_ViewWindow*, QMouseEvent*)));
 442
 443     connect(aWindow, SIGNAL(mouseDoubleClicked(XGUI_ViewWindow*, QMouseEvent*)),
 444             this,    SIGNAL(mouseDoubleClick(XGUI_ViewWindow*, QMouseEvent*)));
 445
 446     connect(aWindow, SIGNAL(mouseMoving(XGUI_ViewWindow*, QMouseEvent*)),
 447             this,    SIGNAL(mouseMove(XGUI_ViewWindow*, QMouseEvent*)));
 448
 449     connect(aWindow, SIGNAL(keyPressed(XGUI_ViewWindow*, QKeyEvent*)),
 450             this,    SIGNAL(keyPress(XGUI_ViewWindow*, QKeyEvent*)));
 451
 452     connect(aWindow, SIGNAL(keyReleased(XGUI_ViewWindow*, QKeyEvent*)),
 453             this,    SIGNAL(keyRelease(XGUI_ViewWindow*, QKeyEvent*)));
 454
 455 //    connect(aWindow, SIGNAL(contextMenuRequested( QContextMenuEvent* )),
 456 //            this,    SLOT  (onContextMenuRequested( QContextMenuEvent* )));
 457
 458     connect(aWindow, SIGNAL(mouseMoving(XGUI_ViewWindow*, QMouseEvent*)),
 459             this, SLOT(onMouseMove(XGUI_ViewWindow*, QMouseEvent*)));
 460
 461     connect(aWindow, SIGNAL(mouseReleased(XGUI_ViewWindow*, QMouseEvent*)),
 462             this, SLOT(onMouseReleased(XGUI_ViewWindow*, QMouseEvent*)));
 463
 464     myViews.append(theView);
 465 }
 466
 467 /*!
 468     Emit activated for view \a view.
 469 */
 470 void XGUI_Viewer::onWindowActivated(QMdiSubWindow* view)
 471 {
 472   if (view && (view != myActiveView) && (!view->isMinimized())) {
 473     myActiveView = view;
 474     ((XGUI_ViewWindow*)myActiveView->widget())->windowActivated();
 475     QList<QMdiSubWindow*>::iterator aIt;
 476     for (aIt = myViews.begin(); aIt != myViews.end(); ++aIt) {
 477       if ((*aIt) != myActiveView) {
 478         ((XGUI_ViewWindow*)(*aIt)->widget())->windowDeactivated();
 479       }
 480     }
 481   }
 482 }
 483
 484
 485 void XGUI_Viewer::onWindowMinimized(QMdiSubWindow* theWnd)
 486 {
 487   if (myActiveView == theWnd) {
 488     myActiveView = 0;
 489     QList<QMdiSubWindow*>::iterator aIt;
 490     for (aIt = myViews.begin(); aIt != myViews.end(); ++aIt) {
 491       if (!(*aIt)->widget()->isMinimized()) {
 492         (*aIt)->raise();
 493         onWindowActivated(*aIt);
 494         break;
 495       }
 496     }
 497   }
 498 }
 499
 500 /*!
 501   SLOT: called on mouse move, processes hilighting
 502 */
 503 void XGUI_Viewer::onMouseMove(XGUI_ViewWindow* theWindow, QMouseEvent* theEvent)
 504 {
 505   XGUI_ViewPort* aViewPort = theWindow->viewPort();
 506   Handle(V3d_View) aView3d = aViewPort->getView();
 507
 508   if ( !aView3d.IsNull() )
 509     myAISContext->MoveTo(theEvent->x(), theEvent->y(), aView3d);
 510 }
 511
 512 /*!
 513   SLOT: called on mouse button release, finishes selection
 514 */
 515 void XGUI_Viewer::onMouseReleased(XGUI_ViewWindow* theWindow, QMouseEvent* theEvent)
 516 {
 517   myAISContext->Select();
 518
 519   emit selectionChanged();
 520 }